Door-hanger.



A. PERLMAN.

DOOR HANGER.

APPLICATION FILED JUNE S, 1912. I

Patented J an. 6, 1914.

2 SHEETSSHEET 1 INVENTOR A. PERLMAN.

DOOR HANGER.

APPLICATION FILED JUNE 6, 1912.

2 SHEETS-SHEET 2.

7557635651 M I Z QMM Rafa-f0)? COLUMBIA PLANOGRAPH co., WASHINGTON, n.c.

Patented J an. 6, 1914.

To all whom it may concern:

UNITED STATES PATENT OFFICE.

ABRAHAM PERI-MAN, OF NEW YORK, N. Y., ASSIGNOR T0 STAR BALL BEARINGDOOR- HANGER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

DOOR-HANGER.

Specification of Letters Patent.

Patented Jan. 6, 1914.

Application filed. June 6, 1912. Serial No. 702,085.

Be it known that I, ABRAHAM PERLMAN, a citizen of the United States, andresident of the city of New York, in the county of New York and State ofNew York, have invented certain new and useful Improvements inDoor-Hangers, of which the following is a specification.

This invention relates to improvements in door hangers and moreespecially to antifrictional sliding doors.

The primary object of the invention is to provide a hanger to beemployed for supportingany number of sliding doors which it may bedesired to employ in a set for closing an opening adapted to be mountedupon roller bearings and in such a manner that each door of the set iscapable of a sliding motion at one-half of the speed of the door whichprecedes it. i

With these general objects in view and others that will appear as thenature of the invention is better understood, the same consists in thenovel combination and arrangement of parts hereinafter fully described,illustrated in the accompanying drawings and pointed out in the appendedclaims.

In the drawings forming a part of this application and in which likereference numerals designate corresponding parts throughout the severalviews: Figure 1 is a plan view of two sliding doors illustrated inclosed position and provided with the present invention. Fig. 2 is aside elevation thereof showing the doors in their locked closedpositions, Fig. 3 is a detail vertical sectional view taken upon line33, Fig. 2,

bars 16, which are spaced apart in parallel relations by the end blocks17 and thus providing a central space the entire length of the tracksfor the reception at both the top and bottom of the rails of portions ofthe traction rollers hereinafter described.

The general operation of the hanger and roller bearings will now bedescribed, it being noted that the track 13 is provided longer thantrack 14 to allow for the closing of the front portion of the opening bythe door 11, while the door 12 positioned upon said shorter track islimited in its movement thereon to a position for closing the opening upto the rear end of the forward door 11.

Each hanger consists of a yoke frame 18 with a strap 19 spanning thelower portion of the yoke and provided with an inwardly extendingperforated boss 20 and to which are secured the bolts 21 upon which thedoors hang. Spaced slightly above said strap and boss and upon eitherside of the latter are two stub axles 22 each having journaled thereon aroller 23 adapted to move in contact with the lower surface of the rails16 with a central slightly tapered annular flange 2& adapted formovement between the respective rails forming each track.

An inwardly projecting top flange 25 of each hanger has a similar track26 depending from the underneath surface thereof. Said track 26 is ofsuflicient length to be mounted upon as many hangers as it is desired tosupply to any one door, two being illustrated for each door in thepresent case, the said track also positioning said han ers a properdistance apart as well as eXten ing a desired distance beyond eachhanger for the purpose of giving a bearing surface upon a predeterminednumber of the supporting rollers employed therewith.

The movable tracks 26 of the hangers are slidably mounted upon therollers 27, which are connected together in any number and any desireddistance apart by the parallel outside strips 28, between which said.roll'ers are journaled. The strips 28 'to the stationary track 13.

a sliding of the same with its hanger rollers 23 beneath the track 13and the upper rollers 27 .upon the top .of said track 13 with themovable track 26 in turn mounted upon the said rollers. The movement ofthe door 11 in this direction may continue until the stop .30 securedcentrally of the track 26 of the hanger of said door 11 contacts theguide pin .31 positioned to engage the same upon the outer roller strip,the same being so positioned that at this point of engagement, therespective upper tracks of the two doors will terminate in the sameplane and the doors-11 and 12 will be positioned one exactly over theother. A further movement imparted to doorll in the same direc- .tionwould then necessarily also move the outer rollers and the inner track26 secured thereto of the hangers of the door 12 and thereby impartingmovement to this door.

In the closing operation the door 11 may be moved toward the left uponthe outer rollers 27 until the stop 30 engages the forward stop pin 30at which time the doors are in closed position. Such movements, it willbe apparent, allow the door 11 to move at double the speed at which thedoor 12 will move, this being due to the fact that a movement of thetrack 26 of the door 11 not only propels the same upon the outer rollers27, but also forcessaid rollers to turn upon their track 13 givingdouble speed. The relative positions of the stop 30 and the stop pins 30and 31 is such that when the doors 11 and 12 are in their closedpositions, the stop 30 engages the pin 30 while upon the openingmovement, the stop .30 travels until engaging the pin 31 and at whichtime the doors are completely opened, the movement of the door 11 beingat double the rate of speed .of that of the door 12, the stop pins 30"and 31 therefor limiting the movement of the door 11 by anengagcmenttherewith of the stop 30 in either the extreme open or closedposition.

In connection with my improved hanger, I have illustrated a latchingdevice carried by the forward yoke 18 and operable by the lever 46 androd 45 carried by the door 11. This device embodies a latch 33 pivotedto said yoke 18 and having a bottom notch 34L for engagement with thekeeper 35 secured A bolt 40 in spanning engagement with the latch 33rests upon the top of the rod 45, while the expansion spring 13 normallydepresses both the bolt 40 and the latch 33, thereby tendingto preventaccidental disengagement of the latch from the keeper. The latch iseasily manually elevated for releasing the same by an upward movementimparted to the bolt 40 through the agency of therod 4.5 upon turning.d'o n the .ilevel" 16.

In this invention the strips 28 may be formed of square tube channeliron and in which event the connecting portion of the bracket 29 betweenthe two tracks i 111.1- necessary. I-beams might also be used as hearingstrips for the rollers with the rollers journaled in perforationsthrough the web 7 of the beams. The -artioular form of the rollers :addsmaterially to the invention, the rollers which are mounted in the strips28, being the supporting anti-f1iction members for sustaining the entireweight of the doors.

While the forms of the invention hereinafter shown and described arewhat are believed to be preferable embodiments thereof, it isnevertheless to be nndersto od that minor changesmay bemadein term,proportion and details of construction without departing from the spiritand scope of the invention, asset forth in "the appended claims.

Having thusdescribed the invention, what I claim is 1. A device of theclass described, comprising two doors, two tracksarranged upon the samehorizontal plane, a set of rollers positioned for movement upon each ofsaid tracks, side strips in separate ones of which said rollers arejournaled, upper tracks positioned for movementupon each :set ofrollers, yoke frames. carried by said upper tracks and one of said doorssuspendedfrom each of said frames, connecting means between the rearwardone of said upper tracks and the forward set of connecting strips, stoppins outwardly projectingadjacent the ends of said last named strips anda stop carried by the forwardly positioned one of said upper tracks andadapted for engagingsaid pins when the doors are completely opened orclosed. 7

2. A device of the class described comprising parallel tracks, a. rollercarrying frame upon each of said' tracks, means for suspending aseparate door upon the frame 2 of each track, meansfor shifting one ofsaid doors upon a movement of the frame for the other door, and meanscarried bysai'd last named frame adapted for limiting the movement ofsaid other door atits extreme'open;

and closed position.

, 3. A device of the class described comsaid track, means connectingsaid frame and Signed at the city of New York, in the the door of lessspeed adapted for actuating county of New York, and State of New thelatter upon a movement of said frame, a York, this 23d day of May, A. D.1912.

stop upon said track and stop pins carried ABRAHAM PERLMAN. 5 by saidframe adapted for engagement by Witnesses:

said stop at both the extreme open and MICHAEL HALPERN, closed positionsof said doors. ISIDORE M. SILBERMAN.

Gopte: 0!. thin patent niay be obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, D. G.

